Update GraphDef version to 624.

PiperOrigin-RevId: 348757441
Change-Id: Iaab6485ff7f32be1c3e24cb48b2ba0b3c8c94fa5
diff --git a/tensorflow/core/public/version.h b/tensorflow/core/public/version.h
index 4feca91..aca2b67 100644
--- a/tensorflow/core/public/version.h
+++ b/tensorflow/core/public/version.h
@@ -108,7 +108,7 @@
 
 #define TF_GRAPH_DEF_VERSION_MIN_PRODUCER 0
 #define TF_GRAPH_DEF_VERSION_MIN_CONSUMER 0
-#define TF_GRAPH_DEF_VERSION 623  // Updated: 2020/12/22
+#define TF_GRAPH_DEF_VERSION 624  // Updated: 2020/12/23
 
 // Checkpoint compatibility versions (the versions field in SavedSliceMeta).
 //